分析非矩形光栅的锥形简化模态法
Tapered Simplified Modal Method for Analysis of Non-rectangular Gratings
摘要：
简化模态法（SMM）提供了一种快速、直观的方法来分析矩形光栅的性能。对于非矩形形状，已经开发了一个版本的SMM，但它只适用于Littrow安装入射的情况，它忽略了反射。在这里，我们使用的锥形波导中的模式耦合的理论，以改善SMM，使其适用于非矩形光栅在任意角度的入射。此外，这种新的“锥形简化模态方法”（TSMM）允许我们正确地考虑反射光。我们在这里提出的理论和数值模拟的分析发展，证明了该方法的有效性。
英文摘要：
The Simplified Modal Method (SMM) provides a quick and intuitive way to analyze the performance of gratings of rectangular shapes. For non-rectangular shapes, a version of SMM has been developed, but it applies only to the Littrow-mounting incidence case and it neglects reflection. Here, we use the theory of mode-coupling in a tapered waveguide to improve SMM so that it applies to non-rectangular gratings at arbitrary angles of incidence. Moreover, this new 'Tapered Simplified Modal Method' (TSMM) allows us to properly account for reflected light. We present here the analytical development of the theory and numerical simulations, demonstrating the validity of the method.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
